Disasters are defined as events that seriously disrupt society and cause widespread human, material, or environmental losses beyond what people can cope with using their own resources. Disaster risk refers to the likelihood of harm from hazards due to community or environmental vulnerabilities. Natural disasters originate from natural forces like volcanoes, earthquakes, typhoons, and fires, while human-made disasters are caused by human actions like war, bioterrorism, and industrial accidents involving nuclear power or hazardous materials.

1. Disaster
and
Disaster Risk

2. Disaster
 is defined as a serious disruption of
functioning of society, causing
widespread human, material or
environmental losses, which exceed the
ability of the affected people to cope
using their own resources.
 An event, either man-made or natural,
sudden or progressive, causing
widespread human, material or
environmental losses.

3. Disaster Risk
 The probability that a community’s structure or
geographic area is to be damaged or disrupted
by the impact of a particular hazard, on account
of its nature, construction and proximity to a
hazardous area.
 It signifies the possibility of adverse effects in
the future. It is derived from the interaction of
social and environmental process, from the
combination of physical hazards and the
vulnerability of exposed elements.

4. Example of Disaster
Volcanoes Fire Typhoon
Earthquake Tornado Storm surge

5. Nature of Disasters
1. Natural Disaster
these originate
from the
different
‘forces’ of
nature.
2. Human-made
Disaster
these disasters
occur due to
people’s actions
against human,
material, and
environment.

6. Natural Disaster
Sinkholes Hurricane Debris flow
Agricultural
disease and pests
Floods and flash
floods
Drought and water
shortage

7. Other example Natural Disaster
1. Storm Surge
2. Earthquakes
3. Tropical storm
4. Landslide
5. Thunder storm and lightning
6. Tornadoes
7. Tsunamis
8. Wildfires
9. Emergency disease
10. Extreme heat
11. Floods and flash
floods
12. La Niῆa

8. Man-made Disaster
War Power service Nuclear power
plant
Bioterrorism Atomic bomb Marawi siege

9. Other example Man-made
Disaster
 Hazardous material
 Power service and blackout
 Nuclear power plant and nuclear blast
 Radiological emergencies
 Chemical threat and biological weapons
 Cyber Attacks
 Explosion
 Civil Unrest